Well.. if you don't set serialVersionUID yourself, then java assigns a
rather volatile one for you so that it doesn't attempt to deserialize
to an incompatible local class.
We could assign one ourselves, and then we have to remember to change
it if we ever make a big enough change to Term, to allow serialize in
one version of Lucene & deserialize in another.
Mike
Jason Rutherglen wrote:
Seeing the following issue between Lucene 2.3 and 2.4. A 2.3
serialized Term
object cannot be deserialized by 2.4. I would guess it has
something to do
with a different Java compiler being used for the Lucene 2.4 build as
serialVersionUID is not defined in the Term class. Fixing the issue
is
critical for a release before the holidays.
The stacktrace below details the error.
Exception in thread "main" java.io.InvalidClassException:
org.apache.lucene.index.Term; local class incompatible: stream
classdesc
serialVersionUID = 554776219862331599, local class serialVersionUID =
435090971444481257
at
java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:546)
at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:
1552)
at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1699)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1908)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1719)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1908)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1719)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at java.util.ArrayList.readObject(ArrayList.java:591)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun
.reflect
.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun
.reflect
.DelegatingMethodAccessorImpl
.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1809)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1719)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:
1908)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1832)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:
1719)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
